Column of the Trinity, Scivias, book 3, vision 7: This very unusual image of the Trinity, as a compound pier forming the corner of a building, is explained on pp. 118–119. The Christ in Majesty in figure merges with the steps to his throne, but here the Godhead has no human features. Like many images in book 3, this one demonstrates the very high symbolic value Hildegard placed on architecture.

From Voice of the living light: Hildegard of Bingen and her world by Barbara Newman